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- W2326522046 abstract "ZnO/SnO2 nanotubes are prepared by electrospinning method with postannealing in air at 500 degrees C. Field emission scanning electron microscopy (FE-SEM) reveals the formation of porous ZnO/SnO2 nanotubes. The X-ray diffraction (XRD) and Raman spectrum results show that the ZnO/SnO2 nanotubes have mixed of wurtzite (ZnO) and rutile (SnO2) structure. High-resolution transmission electron microscopy (HRTEM) results also assist the products polycrystalline nature with an average outer diameter of similar to 300 nm, a wall thickness of similar to 20 nm. The magnetic properties of ZnO/SnO2 nanotubes are studied using a superconductor quantum interference device (SQUID) magnetometer, and revealing the room-temperature ferromagnetism. The ferromagnetic origin has been ascribed to intrinsic defects. The coercivity and saturation magnetization of ZnO/SnO2 nanotubes at 5 K are estimated to be 191 Oe, 0.148 emu/g and higher than at 300 K. Such a ferromagnet without the presence of any transition metal could be a very good option for a class of spintronics." @default.
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- W2326522046 date "2014-05-01" @default.
- W2326522046 modified "2023-09-24" @default.
- W2326522046 title "Room Temperature Ferromagnetism in ZnO/SnO<SUB>2</SUB> Nanotubes by Electrospinning" @default.
- W2326522046 doi "https://doi.org/10.1166/sam.2014.1848" @default.
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